Home / 80,043.12-110,459.52-48,213.36

Finding the Fourth Proportional to 80,043.12, 110,459.52 and 48,213.36

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Solution

The fourth proportional to 80,043.12, 110,459.52 and 48,213.36 is: 66,534.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,043.12 : 110,459.52 = 48,213.36 : x
  2. Step 2: Convert to fraction form
    80,043.12/110,459.52 = 48,213.36/x
  3. Step 3: Cross multiply
    80,043.12x = 110,459.52 × 48,213.36
  4. Step 4: Simplify right side
    80,043.12x = 5,325,624,603.19
  5. Step 5: Solve for x
    x = 5,325,624,603.19/80,043.12
  6. Step 6: Final answer
    x = 66,534.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.